Cited by 219Systemic Lupus Erythematosus ResearchBlood Coagulation and Thrombosis MechanismsVasculitis and related conditions

β2-glycoprotein I–dependent lupus anticoagulant highly correlates with thrombosis in the antiphospholipid syndrome

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de Laat, H. Bas, Derksen, Ronald H.W.M., Urbanus, Rolf T., Roest, Mark, de Groot, Philip G.·2004·Blood

Abstract

The antiphospholipid syndrome is characterized by the presence of antiphospholipid antibodies in plasma of patients with thromboembolic complications. A major problem in defining the syndrome is that serologic assays to detect antiphospholipid antibodies have a low specificity. We recently published a method that specifically detects lupus anticoagulant (LAC) caused by anti–β2-glycoprotein I antibodies. Here, we studied the clinical relevance of detecting β2-glycoprotein I–dependent LAC. Plasma samples were collected from 198 patients with autoimmune diseases. In those samples with a positive partial thromboplastin time–lupus anticoagulant (PTT-LA), a modified activated partial thromboplastin time (aPTT)–based LAC test was performed with cardiolipin as confirming agent. Twenty-five of 58 patients with an aPTT-based LAC were dependent on the presence of anti–β2-glycoprotein I antibodies. Presence of β2-glycoprotein I–dependent LAC was almost completely associated with a history of thromboembolic complications (odds ratio, 42.3; 95% confidence interval, 194.3-9.9). An increased frequency of thrombosis was not found in 33 patients with LAC independent of anti–β2-glycoprotein I antibodies (odds ratio, 1.6; 95% confidence interval, 3.9-0.8). The use of an LAC assay with cardiolipin as confirming agent strongly improves the detection of patients at risk of thrombosis. Our findings suggest that anti–β2-glycoprotein I antibodies with LAC activity are antibodies that are responsible for the thromboembolic complications in the antiphospholipid syndrome.

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Crossref · 10.1182/blood-2004-03-1107

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  • These results confirm and validate several previous reports that have implicated these antibodies in the pathogenesis of APS.

    “These results confirm and validate several previous reports that have implicated these antibodies in the pathogenesis of APS [9, 10, 12, 13, 29, 30], but they also add to the growing body of evidence that shows inconsistent associations between aPL-associated autoantibodies and anamnestic thrombotic risk [3, 16].”

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Research works printed but not linked: 2

  1. Roubey RA. Update on antiphospholipid antibod- ies. Curr Opin Rheumatol. 2000;12:374-378.
  2. Iverson GM, Reddel S, Victoria EJ, et al. Use of singlepoint mutations in domain I of b2-glycopro- tein I to determine fine antigenic specificity of an- tiphospholipid autoantibodies. J Immunol. 2002; 169:7079-7103.

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Authors
de Laat, H. B., Derksen, R. H. W. M., Urbanus, R. T., Roest, M., & de Groot, P. G.
Affiliations
  • From the Department of Haematology, University Medical Centre Utrecht, the Netherlands; the Department of Rheumatology and Clinical Immunology, University Medical Centre Utrecht, the Netherlands; and the Department of Clinical Chemistry, University Medical Centre Utrecht, the Netherlands.
  • University Medical Center Utrecht (NL)
Venue
Blood
Published
2004-12-01
Volume
104
Issue
12
Pages
3598-3602
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W1596249994
Cited by
219
References
19
Citations by year
2026: 4 · 2025: 3 · 2024: 8 · 2023: 4 · 2022: 4 · 2021: 4 · 2020: 4 · 2019: 11 · 2018: 4 · 2017: 12 · 2016: 14 · 2015: 8 · 2014: 15 · 2013: 11 · 2012: 7
FWCI
9.95
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • PubMed (publishedVersion)
Funders
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Topics
  • Health Sciences › Medicine › Rheumatology › Systemic Lupus Erythematosus Research
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Vasculitis and related conditions
Keywords
antiphospholipid syndrome, lupus anticoagulant, beta2-glycoprotein I, anti-beta2-glycoprotein I antibodies, thrombosis, thromboembolic events, cardiolipin, antiphospholipid antibodies, activated partial thromboplastin time, autoimmune disease
MeSH terms
Adult, Autoantibodies, Female, Glycoproteins, Humans, Male, Partial Thromboplastin Time, Predictive Value of Tests, Retrospective Studies, Thrombosis, Odds Ratio, Lupus Coagulation Inhibitor, Antiphospholipid Syndrome, beta 2-Glycoprotein I

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